Valved bag.



J. RBANEY, JR. & J. A. MOANULTY. VALVED BAG.

APPLIOATION FILED MAY zo, 1908.

Patented Aug. 24, 1909.

2 SHBETB-SHEET l.

Wi h1 mozo I ff' mfww/ W wfg@ J @MM/@71S J. REANEY, JB. & J. A.MGANULTY.

VALVED BAG.

APPLIOATION FILED MAY 2o, 190e.

98 1 ,888. Patented Aug. 24, 1909.

2 SHEETS-SHEET 2.

provideia valve that Willautomaticall J'AIES BEANER-J'R., OFBHERWOOILIND'DHN A. .lIcNULTYg'OE!BALTIMOREfMARYLAlNIi.

senses.

peaaeaamomaraem. .Patented Ang. a4', 1909,

Application filed May 20, 1908. Seral'No. 433,818.

.which the following isa specication.

:This invention relates lto improvements in valved bagsor-.sacks and hasparticular referencetodevices of this character whichv are iilled bymeans ofanozzle -thatis inserted .in

a-small valved. opening. 15

.The present invention has for its. obj ect .to .Improve theconstructionof the valve structure-which closes the vlling :opening-,andto crate to close. said o ening. after. the: ing .nozzlehasmeen-withdrawn lfrom .the bag.

.'.Anothenobjectds to provide a slide valve .that..Will `beautomaticallyoperated'A by the separation of .the bag .walls to4 effect a closure ofthe filling o ening.

Another object of the .inventionV is to 'provide an: inside valve for.the .filling openings of the bag .thatiwill operate to close. thebag.openinglby thedactio'n .of .the material-de- .posited .in the bag.

e are aware that it has heretofore vbeen .proposed toprovide. slidevalves for .the iillllng openings of bags, but such .-prior.structuresdiffer from oursin that Athey are formed to operate between.the .folds'or bends of the end ofthe bag and further that in such priordevices f .the slide is .not Y,automatically operated.

fBylneans of our invention .the'valve may belocatedat. any convenientportion of. a bag 40..

provided in the mere overlapped edges where no; folds .are present.

irrespective of foldstand .bends ands` may `-be .The :invention isillustrated in. theaccompanyingldravvings', in which,-

: Figure 1 .shows an exterior; .perspective view of. a complete, bagconstructed infactherein .andina readiness foriilllng.

vvalve structure. -planV viewof the` bag .and valve structure,-

. trates. a vertical section .through the 'bagjfand "valved opening 50.

-. bag embodying the features of lour invention.

filling. Fig. 7 shows a v.dinal sides,2, are merely fo opy Fig. 6,`showsa vertical sectional view through .the bag-the filling o ening havinganozzle entered therein and t e`bag being ready" for cross-sectionthrough the bag and valve of the modied form, and Eig. 8, shows aninverted plan view of lthe valve employed in the bag of the modifiedform. l

'.'The bag may be formed of any suitable material andthe lower end, 1,and opposite parallel sides, 2, may vary and differrmaterially from theconstruction shown, but in the present instance the said end is providedWith creases, 3, and, 4, while the o osite longituled or turned inwardlyto enable the bag tobe readily crushed flat vforstorage or shipment whenem ty. y "lpheend, 5, of the bag is formed by the overlapp' g of theedges, 6, and, 7, offthe bag wall both of which. areV provided W1th`illing openings, 8, and, 9. T hese voverla ped edges are securedtogether crossWise of 'thef bag either by vfastening or stitching but atvone pointand adjacent the lling openings said overlapped edges are leftfree and disconnected, as shown in an exaggerated manner at 10, Fig. 3.rIhe particular shapeof the filling openings, 8, and, 9, is immaterialbut in the form shown in Figs. 1 to 4 we prefer .that the same shall becircular in form. A slit, 11, is provided in the inner edge, 7, and thisslit in the present instance extends ina direction rosswise of the bagand adjacent to or at one side of the filling opening, 9. The slidevalve, 12, which may be formedof .any suitable material, preferably ofaiiexible character, has one end, 13, secured to the Wall ofthe bag ofwhich 'the inner edge or flap, isa part, while the opposite end, 14,

of. sa1d valve is passed through the slit, 11,

. yand'between the unsecured portion of 'the overlapped edges or flaps,6, and, 7,-,the eX- tremetfree end, 14, of the valvev projecting .beyondthe edge of flap, 7, as seen in Fig. 2. p A perforation, 15, is providedin the valve adjacent the attached end, 13, thereof, which when the bagis in the normal condition ready :for filling will register with thefilling openings, 8, and, 9, in the overlapped edges or flaps.

the bag, said Wall-being provided with a fold, 1:6, to which the end ofthe valve is attached, and that portion of the valve that enters theslit, 1 1, has its opposite longitudinal edges It will thus be seen thatthe valve, 12, has one end attached to a movable Wallof held closeagainst the inner surface of the outside fla so that the contents of thebag cannot wor beneath the valve at either of its longitudinal sideedges.

When the bag is in readiness for use the valve will have a position sothat its perforation, 15, will register with the filling openings, 8,land, 9, of the overlapped edges, 6, and, 7, of the bag and a iillmgnozz e, 17, may be inserted through said registered openings toi conveymaterial into the bag. As the material falls into the bag and isdeposited at the end, 1, thereof the walls will spread a part or bulgeand this tendency increases as the filling operation progresses. Whenfthe' bag has received the predetermined quantityv of material thefilling nozzle, 17, is withdrawn and immediately thereafter the internalressure of the material will cause the wall) to which the kend, 13, ofthe valve is attached to straighten out and in do ing so draw the slidevalve, 12, laterally between the overlapped edges and thus move thevalve opening, 15, out of register with the filling openings, 8, and, 9,and edect a closure of the said o enings. By 'holding the oppositelongitudual edges of the valve` against the outer flap and securing theperforated end, 13, while the free end is held between the flaps thevalve will lie close around the filling 'openings of the bag and preventthe materia from escaping b working beneath the valve. After the va vehas thus autoopening hasan elliptical shape.

matically closed, the bag may be turnedover on its side orup-side-down,so as to appl a constant outward pressure of the materla in the bagagainst the valve to maintain it mclose contact with the bag Wall aroundthe filling opening.

The bag' and valve structure illustrated in Figs. 5 to 8 inclusive isvery similar in construction and operation to the valve hereto-` foredescribed and differs therefrom mainly vin the manner of holding thevalve in position. In'this construetlon the lower end, y 18, is formedby the mere overlapping of the flaps, 19, and, 20, lwhich may be pasted,

' stitched or'seeured together in any suitable manner. 'The fiat. end,21, Iof the bag is formed integrally with the sides or body and is freeof exterior folds, while adjacent said end the side wall has the fold,16, as in the bag. shown in Figs. 1 .to 4. The-filling open ing, 22, inthe flat end may be formed by cutting out a portion of .the-material andmaking a circular or other shaped opening but in the form shown in Figs.5 to 8 said inner surfaceof the fiat end, 21, We ably provide a guide orkeeper,- 23, w 'ch in the resent instance has the form of a strip ofexible material. This guide orv keeperV has .its o posite ends, 24,attached to the inner su ace of the flat end, 21, but between saidattached ends it is free and disconnected.

' On the` referf A exible valve, 25, passes freely beneath keeper and'isprovided with a perforation, 26, which, when the valve is in the normallling position, will register with the filling opening, 22, in the flatend, 21,

the guide or and permit the passage of material into the bag. In thepresent instance the valve is formed from a sheet of suitable flexiblematerial and has a rectangular shape and the perforation or opening, 26,has position nearer one end than the other. is slipped beneath thecentral loose portion of the guide or keeper, 23, and the end, 27,thereof which is nearest the perforation, 26,

4is secured to the movable wall of the bag.

By reference to Fig. 6 it will be seen that as thereinv shown the end,27, of the valve may be attached to the fold, 16, in the side Wall whilethe opposite end, 28, of said valve which is at the opposite side of theerforation, 26, may be rovided with doub e folds, 29,Ll and, 30, merey-for the purpose of shorteni'ng said 4end surface of the flat end, 21.-The extreme edge `of this end, 28, of the' valve lies flat against theflat end, 21, of the bag and is secured thereto in any suitable manner,preferably by pasting. -1t will thus be seen that the valve shown inFigs. 5 to 8 inclusive has its end attached to a movable wall of the bagwhile the perforated portion between its opposite ends is free.

The guide or keeper, 23, may vary in Width and the same may consist of amere narrow strip of flexible material or have sufficient width to'extend over or cover the greater portion of the imperforate end of thevalve, 25, as seen in Fig. 8. In this latter form the keeper is alsoprovided with an opening, 31, which registers with the filling opening,22, in the fiat end of the bag and the valve slides between the kee erand the flat bag end when its perforate portion is moved out of registerwith the openings, 22, and, 31. The operation of this latter form of'valve is precisely' like that of the valve shown in Figs. 1 to 4,-,thes Vreading-apart of the bag walls serving to raw the valve from beneaththe` keeper and straighten it by doublmg and thereby .enabling 1t tol belaid flat against the inner 7 5 This valve vout at against the flat end,21, and present t It will be Dotta' that 'in the bag Shown in.

Figs. 1 to 4 inclusive the lapped walls of the bag form a doublethickness or double wall at that point and that the' slide valve hasposition on the inside -of the bag and is not vaccessible for operationfrom the exterior. It will also be noted that-one end of the slide valveis attached to the bag wall on the `inside of the bagand that the.'valve senese passes through a slit in the underlap ing wall and operatesbetween the two wal sat the double-thick portion.

Having thus described our invention-what we claim and desire to secureby Letters Patent is,-

1. A collapsed bag having movable walls with a filling opening therein,a slide valve movable over said opening, and connections between thevalve andvone of the movable walls to operate the slide valve by theseparation of the walls.. i l

2. A bagl having a filling opening and -a slide valve also having .anopening which normally registers with the bag opening,-said valve beingoperated from one side by the action of the material de ositedwin thebag.

3. A bag having a fil ing opening7 a slide valve adjacent said fillingopenln and having an opening that normally registers with the fillingopening,-said valve also' having an imper orate portion at one side ofits opening and a connection between the valve and the bag for o eratingthe valve.,

4. A bag aving a filling opening,v a slide valve exposed to the interiorof the bag and having an opening that normally registers 'with the bagopening and connections between the valve and the interior of the bag elfor operating the valve.

5. A collapsed bag having a filling opening at one end thereof and acrease in 1ts wall adjacent said end, a slide valve on the inside of thebag adjacent said opening and connections between the said valve and oneof the collapsed walls of the bag to automatically operate the valve.

6. A collapsed bag having a filling opening in one of its walls and aslide valve on the inner side of the wall at said opening and said valvehaving one end connected to a collapsed wall of the bag structure, andmeans on the inner side of the bag and between the connected end of thevalve and the filling opening thereof for guiding said valve when p itis drawn by the separation of the bag walls.

7. A collapsed bag having aillin o ening and a slide valve on the insideo t e bag around said opening and having a perforated portion and animperforate port1on,-said valve being attached to the collapsed ba walladjacent the perforated portion an means for holding the valve againstthe inner surface of the bag whereby the separation of the valve wallswill operate the valve.

8. A collapsed ba having a filling opening and a crease mits si e Wall,a slide valve having one end attached to the collapsed side wall'adjacent said crease and its other end extendin beyond the fillingopening of the bag, an crease and the filling openin for guiding thevalve as itis drawn upon t e separation of the bag walls.

9. A collapsed bag having a double-walled ortion in one of its collapsedwalls with a means .interposed between the ling opening in each wallportion, and a f valve between said'w'all portions and means forconnectin the valve with the collapsed walls of the bag whereby toautomatically opeate the valve by the separation of the wa s.

1o. A bag having a denne-Walled ortion with a lilling opening in eachWall an aslide valve having one end secured to the inside ofv the bagwall and its other end projecting between said double-walled ortionwhereby the expansion of the bag will automatlcally operate the valve. f

11. A colla sed bag havmg two perforated walls one of w ich .underlapsthe other and 1s exposed to the interior of t e baigl said underlappingwall being provided wit a slit ad] acent its perforation, and a slidevalve projectin from .the inside of the bag through said s it andconnected with the colla sed wall of the bag whereby the separation othe bag walls will cause the valve to operate between the twoperforated-walls.

n testimony whereof we affix our signatures in presence of twowitnesses.

JAMES REANEY, JR. JOHN A. MCANULTY. Witnesses: i

G. FERDINAND Voer, CHAs. B. MANN.

